Open Access
ARTICLE
A Spatial FEM Model of Thermal and Mechanical Action in RCC dam
M. S. Jaafar1, J. Noorzaei1,2, A. A. Abdulrazeg1, T. A. Mohammed1, P. Khanehzaei1
1 Civil Engineering Department, Universiti Putra Malaysia, UPM-Serdang, Malaysia
2 Institute of advance Technology, Universiti Putra Malaysia, UPM-Serdang, Malaysia
Structural Longevity 2011, 5(3), 147-155. https://doi.org/10.3970/sl.2011.005.147
Abstract
Specific features of the thermal stress fields in roller compacted concrete (RCC) dam are always their spatial character and completely dependent on
the maturity functions such as deformations properties (elastic, creep). The thermal changes in the material affect the elastic, creep properties of the material, and
in turn, the stress fields within the structure. Therefore, the effects of temperature
on the properties of RCC materials( elastic, creep) has to be taken into account in
order to determine the risk of the thermally induced cracking in these dams. In
this study, a viscoelastic model, including ageing effects and thermal dependent
properties is presented. The different isothermal temperature influence on creep
and elastic modulus is taken into account using the maturity concept. The result of
analysis on an RCC dam has shown that, the increase of the elastic modulus has
been accelerated duo to the high temperature of hydration at the initial stage, and
consequently stresses are increased. The elastic modulus increased by 42% in the
initial stage.
Keywords
Cite This Article
Jaafar, M. S., Noorzaei, J., Abdulrazeg, A. A., Mohammed, T. A., Khanehzaei, P. (2011). A Spatial FEM Model of Thermal and Mechanical Action in RCC dam.
Structural Longevity, 5(3), 147–155.